The Buldang by Hirohiko Kamiya

Hirohiko Kamiya's design for a modular style of seating is a nine-metre (30 foot) long sausage tube of a chair which can be arranged to form a comfortable armchair sofa. The tube is segmented just like sausage links. The selling feature of the Buldang or Bulldang (two spellings appear to be in use) is that the user can come up with a tube orientation that is most comfortable to them. Several of these sausage chairs together increase the spatial permutations to the nth degree.